holmes



W". YOU NGBLOOD 8v T. J. HOLMES.

Boiler-Scale Collector.

No. 221,605.- Patented ma 11,1880.

WITNESSES MJZyM /M 01.9mm PNml-ITMOORAPHER, WABKINGT'ON. D C.

UNITED STATES PATENT OFFICE.

WILSON YOUNGBLOOD AND THOMAS J. HOLMES, OF NEW ORLEANS, LA.

BOILER-SCALE COLLECTOR.

SPECIFICATION forming part of Letters Patent No. 227,605,'dated May 11, 1880.

Application filed. February 4, 1880.

To all whom it may concern Be it known that we, WILSONYOUNGBLOOD and THOMAS J. HOLMES, of New Orleans, in the parish of Orleans and State of Louisiana, haveinvented anew and Improved Boiler-Scale Collector, of which the following is a specification.

Figure l is a sectional side elevation of a boiler, showing the scale-collector in position. Fig. 2 is a plan of the collector. Fig. 3 is an end elevation of the boiler, partly in section, showing the scale-collector in position.

Similar letters of reference indicate corresponding parts.

The object of this invention is to provide a simple device for preventing the collection of scale on the crown-sheet of a boiler.

In many muddy rivers, where the river water is used in steamboat-boilers, a great deal of sediment or scale quickly adheres to the crown-sheet of the boiler and causes by its presence an unequal heating and consequent distortion, bulging, and frequent fracture of the crown-sheet.

Our invention is designed to protect the crown-sheet of the boiler by preventing this deposit or scale.

charge-pipe, E, which passes down through the crown-sheet of the boiler into the leg 0 of the mud-drum B, whereby the mud and scale deposited in this collector are conducted into the said mud-drum B. On the end of this discharge-pipe E is a cap, F, Whose object is to prevent the mud and scale from returning to the scale-collector.

Ordinarily the scale-collector D is uncovered; but sometimes, when used in a boiler where there is a violent circulation of water, it may be partially covered by a cover, G, which serves to prevent undue agitation of the Water in the scale-collectorD, and thereby facilitates the deposit of the mud in it.

When the scale-collector D is placed in the position shown in the drawings and the boiler is in operation, it is found that a violent circulation of water is caused on the crown-sheet beneath the said collector, so that all deposit and scale upon the crown-sheetis thereby prevented, and it is also found that the point of least circulation in the boiler is immediately above and within the scale-collector D. Consequently the mud tends to deposit within this collector D, and to gravitate thence into. the mud-drum B of the boiler.

Having thus described our invention, we claim as new and desire to secure by Letters Patent- A boiler-scale collector consisting of the pan D .G, arranged immediately over the grate-bars on the bottom of boiler, said pan being partly covered and provided with discharge-pipe to prevent the deposit of scales on the boilersheet and carry them into the mud-drum, all constructed and arranged for operation as specified.

WILSON YOUNGBLOOD. THOMAS JEFFERSON HOLMES.

Witnesses:

' J. 0. SoHoNEKAs,

J. BENDERNAM. 

